Naughty Naaja, page-281

So Bezos, Gates, Dalio and friends are interested in cobalt from Greenland, as a substitute for cobalt from the Congo.

Cobalt and uranium are often found together, so what about Greenland's 100 ppm limit on uranium?

The association between cobalt and uranium caused a glitch four years ago in the Congo.

DR Congo's Katanga Mining said Tuesday it had temporarily suspended cobalt sales from its Kamoto mine after detecting the presence of radioactivity from uranium, making the cobalt unsafe for export.

Katanga, which is owned by Swiss mining giant Glencore, said cobalt sales and exports from Kamoto would be halted until further notice.

"The presence of uranium was recently detected in the cobalt hydroxide produced at the Kamoto Project in levels that exceed the acceptable limit allowed for export of the product through main African ports to customers," it said.

https://www.france24.com/en/20181106-katanga-suspends-cobalt-sales-after-detecting-uranium